A small army of lawyers at Covington & Burling LLP, among the international law firms whom Microsoft employs, have taken to the internet waging war against a documents leak which hit the web over the weekend. Takedown notices are flying, removing copies of the document on DropBox, Scribd, and more.

Inhed.cz, a Czech tech news site also received a notice. Microsoft's lawyers write:

Microsoft has received information that the domain listed above, which appears to be on servers under your control, is offering unlicensed copies of, or is engaged in other unauthorized activities relating to copyrighted works published by Microsoft.

1. Identification of copyrighted works:

Copyrighted work(s):
IEB Roadmap

Copyright owner: ?
Microsoft Corporation

2. Copyright infringing material or activity found at the following location(s):

xxxxxxxxxxx-XBox-720-9-24-Checkpoint-Draft-1.pptx

Google Inc. (GOOG) claims Microsoft is one of the most legally active companies in terms of takedown notices, requesting that 448,236 URLs be killed this month alone. Some of those are due to its efforts to stomp out piracy and botnet hosting. But others come from more questionable applications, such as trying to silence leaks.

The leaked Xbox 720 slides describe Kinect 2 and the "Fortaleza project" a Google-glasses like effort that could bring augmented reality to the Xbox 720 as early as 2014. Here are a few of the verboeten slides: